Wall construction



C- 27, 1931. H. w. HoEFf-:R

` WALL CONSTRUCTION Filed May 8, '1929 xwllllllllllllll n UNITED; STAT-Es OEI Patented Oct. 27, 1931 HERMAN W. HOEFER, OFv WATERVLIEI'NEW YORK- -v WALL CONSTR-nunon Applicationv mea nay se, 1929..y serial m. 361,469.

slabs serve inthe capacity` of form elements formolding or forming the plastic columns within the confines of thecompleted wall.

TheA invention furthermore embodies means, suohas undercut recesses formed in the wall sections or slabs, into which extend projecting portions or keys constituting an integral part' of the plasticcolumns, whereby to establishv a bond between the columns and wallisections so that the columns strengthen, support and connect the edges of the adjacent inner and outer wall sections or slabs.

.i The invention furthermore residesin a method of lerecting the` walls wherein inner and outer wall,k sections4 or slabs arranged in vcourses are spaced apart at the juncture of 30 the, adjacent slabs byv vertically disposed pairs of spacing strips which' combine with said 'sections orfv slabs to produce a form into which a plastic orcementitious substance is introduced or poured to form columns within the confines of the wall and concealed there- The methodmore specifically consists in i providing during the pouring step of ythe columns, keys which interlock in undercut receiving recesses on the confronting inner faces of thelslabs, so that the columns when set serve to join the adjacent slabs for retaining themfiagainst separation while functioning to unite the inner and outer slabs.v

' Other objects of the invention reside in the simplicity of construction and mode of erection ofthe Wallfthe economy with which the same may be produced and the general etliciencyk derived therefrom.

v `IVith the above recited yand otherl objects in view, reference is had to the following description and accompanying drawings,v in which there is exhibited` one example or embodiment of the invention, while` the claims define the actual scope of the same.`

In the drawings Figure 1 is a sectional plan view through a wall constructed in accordance with the inventionr and illustrating the temporary clampingmeans applied tothe wall during the formation of one of the columns, said section being taken approximately on the line indicated at 1-1 in FigureQ. f

Figure 2- is a fragmentaryside view of the i,

wall.y j

Referring: to the drawings of reference,l A and B designate respectively the inner andouter yWall sections or slabs which are molded, castor otherwise formed of a cementitious or plastic substance -suit-- ably reinforced by the embedded-,reinforcement C. The outer sections or slabs .B have their outer surfaces yDy suitably inlaid or otherwise treated to-simulate. stone. brick or any other analogous decorative finish, Vwhile the inner sections orjslabs A have their outer surfaces E formedto present a finished interior wall; The slabs or sections are of a prerby characters determined area and are designed to be yarranged in superimposed courses. In order to provide means for strengthening, supporting and joining thesections or slabs A and B, plastic columns F are formed between the inner andl outer sections adjacent ythe juncture of the end edges` thereof. f In practice. the sections at la distance appropriately spaced from their end edges are provided with vertica] grooves G' which receive the oppositeedges ofpartition strips. H which Vserve to properlv Y space apart the inner and outer-slabs while combining with the slabs to define a space within which the columns F are formed by the pouring of the cementitious or pla stic materi al thereinto. In order vto form a bond for joiningthe end edges of adjacent pairs of inner and outer slabs. spacing strips I are employed which are placed at the end edges of the adjacent yinner and outer pairs of slabswhich spacing-strips are of a thickness to extend partiallyinward of the thickness of the slabs while leaving a remaining groove which receives a portion of the material indicated as the tongues J. In order to further form a bond against lateral separation of the slabs, dovetail or undercut recesses or grooves K are formed in the confronting inner surfaces of the inner and outer slabs to receive a portion of the plastic material in the nature of interlocking keys L. In order to temporarily clamp the slabs in their properly spaced relation during the pouring operation of thev columns F, clamp plates 5 are arranged alongside of the outer surfaces of the Vinner and outer slabs, as clearly illustrated at the righthand side of the figures, andsaid clamping plates are formed with registering apertures 6 which coincide with the apertures 7 of Vthe slabs to receive'therethrough the bolt Shanks 8 having heads 9 at one end and threaded terminals l0 at the opposite end for receiving the nuts 1l. After thecolumns F have been poured and set or hardened, it will be appreciated that the temporary clamping means is removed, as well as the spacing strips I. The apertures 7 of the slabs are then pointed up or filled, as at l2, while the spaces left by the removal of the spacing strips I on the inner surface of the wall are pointed up, as at g 13. It is, of course, to be understood that the columns F may be suitably reinforced bythe embedded reinforcing elements M, if desired.

The method of erectingr a wall consists in arranging in spaced parallel relation a plurality of superimposed courses of inner and outer wall sections or slabs A and B, arranging vertically disposed pairs of transverse partition strips between the inner and outer wall slabs on opposite sides of the juncture of theends of said slabs and then pouringr a plastic .substance or cementitious mixture into the space defined between each pair of partition strips and the inner and .outer wall slabs to form columns within tlie.confnes of the wall structure. y The method may fur ther include the steps of installing temporary partition strips between the end edges of the adjacent pairs of slabs, which strips are of a lesser thickness than the slabs so as to provide receiving grooves for a portion. of the plastic or cementitious substance forming the column whereby to imite the end edges of the slabs. The method may further include the step of keying the slabs to the column by permitting the plastic substance` to enter into and forni interlocking keys in undercut recesses or grooves in the confronting inner faces of the slabs. i

From the foregoing, it will thus` be seen that a wall structure and method of. erecting the same hasbeen devised, by virtue of which a wall having completely finished outer and inner surfaces is produced, together with a dead air space therebetween, which Wall is properly supported and reinforced by columns concealed within its contines.

What is claimed is:

l. A wall structure including spaced parallel inner and outer precast wall slabs respectively arranged in spaced end to end relation and formed adjacent the inner ends of their confronting faces with vertical grooves extending throughout the height of the slabs, said slabs being yfurther provided with undercut recesses extending vertically throughout the height of the slabs and disposed between the `grooves and end edges of said slabs, spaced vertical pairs of partition elements arranged transversely between the inner and outer slabs with the side edges of said elements fitted within the grooves and on opposite sides of the end edges of each adjacent pair lof inner and outer slabs and a poured plastic column formed within the conines of the wall structure between the partition elements and slabs after the slabs and partition elements have been erected, to constitute means disposed wholly within the confines of the wall structure for edectually connecting the slabs against relative movement and for reinforcing and supporting the wall structure. e t

2. A method of erecting walls consisting in arranging in spaced parallel and end to end relation a plurality of wall slabs, arranging verticallydisposed pairs of transverse partition elements between the inner and outer wall slabs on opposite sides of the juncture of the ends of said slabs, temporarily clamping the wall slabs and partition elements in said relation by exerting external inward pressure thereagainst, and pouring a plastic substance into the space defined between each pair of partition strips and the inner and outer wall slabs, to form columns within the confines of the wall structure for strengthening the samerand for joining and supporting the slabs.

3. A methodof erecting building walls consi sting in arranging a plurality of inner and outer wall slabs respectively in end to end relation, arranging transversely therebetween at opposite sides of the juncture of adjacent pairs of slabs vertically disposed partition elements, arranging between the ends edges of adjacent slabs spacing strips of lesser thickness than said slabs with the outer surfaces of the spacing strips iiush with the outer surfaces of the slabs, temporarily clamping in place -by external inward pressure, the inner and outer slabs and the partition elements and then pouring a plastic substance into the space defined between the partition elements and the wall slabs to form columns within the confines of the wall structure in which a portion of said substance extends into the space formed between the end edges of the slabsto serve as a bond for joining the same.

4. A method of erecting building walls consisting in arranging in spaced, parallel and end to end relation precast plastic slabs, ar-

ranging vertically disposed pairs of partition n y elements transversely between the inner and outer walls of the slabs on opposite sides of the juncture of the adjacent ends of the slabs in such a manner as to prevent relative separation of the partition elements with respect to each other, temporarily clampin the wall slabs and partition elements in sai relation by exerting external inward pressure thereagainst, pouring a plastic substance into the space defined between each pair of partition elements and the inner and outer Wall slabs to form columns within the coniines of the wall structure for bonding the slabs together v and for reinforcing and supporting the wall structure and then removing the temporary clamping means after the plastic substance forming the columns has set.

HERMAN W. HOEFER. 

